Sleeping Disorders List and ICD 9 Diagnostic Codes

There are more than 80 different types of sleep disorders. Sometimes, it's helpful, from a psychological and medical standpoint, to look at the long list of established sleep issues that may affect you.

Diagnosis lists like this exist so that billers can apply the appropriate medical codes for billing and health insurance purposes. But these codes may also help you understand the problem that is disturbing your ability to get a restful night's sleep.

This article offers a comprehensive list of sleeping disorders used by doctors. ICD 9 codes are listed below. Your doctor may use the newer ICD 10 medical codes instead, but the conditions are mostly the same.

Man sleeping in bed

Tetra Images / Getty Images


Insomnia is defined as difficulty falling or staying asleep or sleep that is not refreshing. Insomnia can affect adults and children. While sometimes there is no identified cause, some common contributors include:

  • Poor sleep habits
  • Medical conditions
  • Psychiatric problems
  • Drug use

Insomnia is broken up into many conditions.

Description  ICD-9 Code  ICD-10 Code 
Adjustment sleep disorder (acute insomnia 307.41  F51.02 
Psychophysiologic insomnia 307.42  F51.04 
Paradoxical insomnia (formerly sleep state misperception)  307.42  F51.03 
Idiopathic insomnia  307.42  F51.01 
Insomnia due to mental disorder  307.42  F51.05 
Inadequate sleep hygiene  V69.4  Z72.821 
Behavioral insomnia of childhood  307.42  — 
Sleep-onset association type z73.810
limit-setting sleep type z73.811
combined type Z73.812
Insomnia due to drug or substance  292.85  G47.02 
Insomnia due to a medical condition  327.01  G47.01 
Insomnia not due to a substance or known physiologic condition, unspecified  780.52  F51.09 
Physiological (organic) insomnia, unspecified; (organic insomnia, NOS)  327.00  G47.09 

Sleep-Related Breathing Disorders

Breathing can be profoundly disrupted during sleep. While unconscious, it becomes difficult to keep the airway open, which may lead to conditions like sleep apnea.

These conditions may result from problems present at birth, the anatomy of the airway, other medical issues, or the use of medications.

Central Sleep Apnea Syndromes

If the brain fails to initiate a breath, a problem called central sleep apnea may occur. Central sleep apnea syndromes include:

Description ICD-9 Code ICD-10 Code 
Primary central sleep apnea  327.21 G47.31
Central sleep apnea due to Cheyne Stokes breathing pattern  768.04 R06.3 
Central sleep apnea due to high altitude periodic breathing  327.22  G47.32 
Central sleep apnea due to a medical condition, not Cheyne-Stokes  327.27  G47.31 
Central sleep apnea due to a drug or substance  327.29  F10-19 
Primary sleep apnea of infancy  770.81  P28.3 

Obstructive Sleep Apnea Syndromes

In obstructive sleep apnea, the airway collapses. Pediatric and adult obstructive sleep apnea have the ICD-9 code 327.23. The corresponding ICD-10 code is G47. 33.

Sleep-Related Hypoventilation and Hypoxemic Syndromes

In these sleep disorders, abnormal gas exchange occurs during sleep. Sleep-related hypoventilation and hypoxemic syndromes include:

Description  ICD-9 Code  ICD-10 Code 
Sleep-related nonobstructive alveolar hypoventilation, bidiopathic  327.24  G47.34 
Congenital central alveolar hypoventilation syndrome  327.25  G47.35 
Sleep-related hypoventilation/hypoxemia due to pulmonary parenchymal or vascular pathology  327.26  G47.36 
Sleep-related hypoventilation/hypoxemia due to lower airways obstruction  327.26  G47.36 
Sleep-related hypoventilation/hypoxemia due to neuromuscular or chest wall disorders  327.26  G47.36 

Other Sleep-Related Breathing Disorder

Sleep apnea or sleep-related breathing disorder, unspecified (320.20)

Hypersomnias of Central Origin

Excessive daytime sleepiness is called hypersomnia. This drowsiness is most often due to a lack of nighttime sleep. However, it may also occur in conditions such as narcolepsy.

Hypersomnia may be related to medication use or other health problems. However, there are also rare conditions that may manifest as excessive sleepiness.

Hypersomnias that are traced to the brain, or those of central origin, include:

Description ICD-9 Code  ICD-10 Code 
Narcolepsy with cataplexy  347.01  G47.411 
Narcolepsy without cataplexy  347.00  G47.419 
Narcolepsy due to medical condition  347.10  G47.421 
Narcolepsy, unspecified  347.00  G47.43 
Recurrent hypersomnia  780.54  G47.13 
Kleine-Levin Syndrome  327.13  G47.13 
Menstrual-related hypersomnia  327.13  G47.13 
Idiopathic hypersomnia with long sleep time  327.11  G47.11 
Idiopathic hypersomnia without long sleep time  327.12  G47.11 
Behaviorally induced insufficient sleep syndrome  307.44  F51.12 
Hypersomnia due to medical condition  327.14  G47.14 
Hypersomnia due to drug or substance  292.85  G47.14 
Hypersomnia not due to a substance or known physiological condition  327.15  F51.1 
Physiological (organic) hypersomnia, unspecified (organic hypersomnia, NOS) 327.10 G47.10

Circadian Rhythm Sleep Disorders

The body’s natural pattern of sleep and wakefulness is called the circadian rhythm. When this becomes disrupted or misaligned, it may result in circadian rhythm sleep disorders.

The most common of these types of sleep disorders is jet lag. Another common manifestation is when teenagers are afflicted with a delayed sleep phase. In addition, people who work late or overnight shifts may run into these types of sleep problems.

There are many circadian rhythm sleep disorders.

Description ICD-9 Code  ICD-10 Code
Circadian rhythm sleep disorder, delayed sleep phase type 327.31  G47.21 
Circadian rhythm sleep disorder, advanced sleep phase type 327.32 G47.22 
Circadian rhythm sleep disorder, irregular sleep-wake type 327.33 G47.23 
Circadian rhythm sleep disorder, free-running (none trained) type 327.34   G47.24 
Circadian rhythm sleep disorder, jet lag type 327.35  G47.25 
Circadian rhythm sleep disorder, shift-work type 327.36  G47.26 
Circadian rhythm sleep disorders due to medical disorder 327.39 G47.27 
Other circadian rhythm sleep disorder 327.39  G47.29 
Other circadian rhythm sleep disorder due to drug or substance 292.85 G47.27


Parasomnias are typically abnormal sleep behaviors associated with the two major types of sleep: non-REM and REM sleep. These commonly afflict children, but many persist into adulthood.

There is an association between these types of sleep disorders and particular future diseases, including REM behavior disorder and neurodegenerative diseases such as Parkinson’s disease and Alzheimer’s disease.

These disorders range from bizarre to commonplace and are marked by common things like nightmares or bedwetting. In addition, they are linked to the use of medications or other health problems.

Disorders of Arousal (from Non-REM Sleep)

With these sleep disorders, people do not wake fully, are unresponsive to people trying to wake or interact with them, and have little to no awareness of what is happening during an episode.

Disorders of arousal from non-REM sleep include:

Descriptions  ICD-9 Code ICD-10 Code
Confusional arousals  327.41  G47.51 
Sleepwalking 307.46  F51.3 
Sleep terrors 307.46 F51.4 

Parasomnias Usually Associated with REM sleep

During REM (rapid eye movement) sleep, a person's eyes move quickly under their eyelids, and their breathing, heart rate, and blood pressure increase. Disorders associated with REM sleep include:

Description  ICD-9 Code ICD-10 Code
REM sleep behavior disorder (including parasomnia overlap disorder and status dissociatus) 327.42  G47.52
Recurrent isolated sleep paralysis 327.43 G47.53 
Nightmare disorder 307.47  F51.5 
Sleep-related dissociative disorders 300.15 F44.9 
Sleep enuresis 788.36  N39.44 
Sleep-related groaning (catathrenia) 327.49 G47.59 
Exploding head syndrome 327.49 G47.59 
Sleep-related hallucinations 368.16 R29.81 
Sleep-related eating disorder 327.49  G47.59 
Parasomnia, unspecified 227.40  G47.50 
Parasomnia due to a drug or substance 292.85  G47.54 
Parasomnia due to a medical condition 327.44 G47.54

Sleep-Related Movement Disorders

Various conditions result in movements that occur during or before the initiation of sleep. The most common afflictions include teeth grinding, leg cramps, restless legs syndrome, or periodic limb movements.

In totality, the sleep-related movement disorders include:

Description  ICD-9 Code ICD-10 Code
Restless legs syndrome (including sleep-related growing pains) 333.49  G25.81 
Periodic limb movement sleep disorder 327.51 G47.61 
Sleep-related leg cramps  327.52  G47.62 
Sleep-related bruxism  327.53  G47.63 
Sleep-related rhythmic movement disorder 327.59  G47.69 
Sleep-related movement disorder, unspecified  327.59  G47.90 
Sleep-related movement disorder due to drug or substance  327.59  G47.67 
Sleep-related movement disorder due to medical condition 327.59 G47.67

Other Conditions That Impact Sleep

Beyond the major classes of sleep disorders described above, various other conditions can impact sleep. These may or may not represent a pathological condition, and often they do not. In addition, some conditions are associated with specific medications and psychiatric disorders.

Isolated Symptoms, Apparently Normal Variants, and Unresolved Issues

These conditions fall between what is considered normal and abnormal sleep. They include:

Description  ICD-9 Code ICD-10 Code
Long sleeper 307.49 R29.81
Short sleeper 307.49  R29.81 
Snoring 786.09  R06.83 
Sleep talking 307.49  R29.81 
Sleep starts, hypnic jerks 307.47  R25.8 
Benign sleep myoclonus of infancy 781.01  R25.8  
Hypnagogic foot tremor and alternating leg muscle activation during sleep 781.01  R25.8  
Propriospinal myoclonus at sleep onset 781.01  R25.8  
Excessive fragmentary myoclonus 781.01  R25.8  

Other Sleep Disorders

These conditions are lumped into the "other" category because they don't neatly fit into other classifications. Other sleep disorders include:

Description  ICD-9 Code ICD-10 Code
Other physiological (organic) sleep disorder  327.8  G47.8 
Other sleep disorder not due to a known substance or physiological condition 327.8  G47.9 
Environmental sleep disorder  307.48  F51.8 

Sleep Disorders Associated with Conditions Classifiable Elsewhere

Sleep disorders associated with conditions classifiable elsewhere include:

Description  ICD-9 Code ICD-10 Code 
Fatal familial insomnia  046.8 A81.8 
Fibromyalgia 729.1  M79.7
Sleep-related epilepsy 345  G40.5 
Sleep-related headaches 784.0  R51 
Sleep-related gastroesophageal reflux disease 530.1  K21.9 
Sleep-related coronary artery ischemia 411.8  I25.6 
Sleep-related abnormal swallowing, choking, or laryngospasm 787.2  R13.1 

Other Psychiatric or Behavioral Disorders Commonly Encountered in the Differential Diagnosis of Sleep Disorders

Psychiatric disorders commonly affect sleep. Other psychiatric or behavioral disorders commonly encountered in the differential diagnosis of sleep disorders include:

A Word From Verywell

If you believe that you may have a sleep disorder, you should speak with your primary care physician. They may recommend seeing a board-certified sleep specialist to address your concerns.

2 Sources
Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Centers for Medicare & Medicaid Services. ICD-9-CM diagnosis and procedure codes: abbreviated and full code titles.

  2. Centers for Medicare & Medicaid Services. 2018 ICD-10 CM and GEMs.

Additional Reading
  • "The International Classification of Sleep Disorders." American Academy of Sleep Medicine, 2nd edition, 2005.
  • Kryger, MH et al. Principles and Practice of Sleep Medicine. ExpertConsult, 5th edition, 2011, pp. 680-683.

By Brandon Peters, MD
Brandon Peters, MD, is a board-certified neurologist and sleep medicine specialist.